Vertical Silver@Silver Chloride Core–Shell Nanowire Array for Carbon Dioxide Electroreduction

作者：Junyu Ge, Jun Long, Zixu Sun, Han Feng, Jie Hu, See Wee Koh, Qing Yu, Jianping Xiao, Hong Li · 发表于：ACS Applied Energy Materials · 年份：2019 · DOI：10.1021/acsaem.9b01286 · 被引用次数：27 · 研究领域：CO2 Reduction Techniques and Catalysts、Ionic liquids properties and applications、Advanced Photocatalysis Techniques

Core–shell nanowires with conductive metal cores and active catalyst shells hold great promise for making a catalyst electrode with high total activity. Indeed, core–shell nanowire arrays have been demonstrated as the catalyst in various electrochemical reactions, yet their catalytic roles are underexplored for carbon dioxide (CO 2 ) electroreduction. Herein, we report a reduced silver@silver chloride (Ag@AgCl x ) core–shell nanowire array for electrocatalytic CO 2 reduction. The Ag@AgCl x core–shell array electrode shows high total activity including low onset potential and high current density. The strong electronic coupling between AgCl x and the Ag core results in the record-high specific CO 2 RR activity to date.